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Excavation Technology for Super Large Combined Foundation Pit Using Common Support System
Author(s): WANG Zifeng
Pages: 1122-
1124
Year: 2012
Issue:
12
Journal: Building Construction
Keyword: 超大联合基坑; 排桩挡土墙; 共用支撑体系; 土方开挖;
Abstract: 天津于家堡金融区以超高层建筑群为主,其超大联合基坑分成6个地块,且有2条地铁十字交叉状穿过该地块,并与其同步施工。鉴于此,该基坑支护体系采用了钻孔灌注排桩挡土墙加混凝土单道支撑的共用围护体系。详细阐述了超大联合基坑采用共用支撑体系的开挖施工技术,并且在实践过程中积累了经验,取得了成效,可给类似项目的施工提供借鉴。
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